We have a 3 nodes cluster （157,158 and 159）, we send 4000 messages per seconds to 158 in 157, sometimes 157 can not receive the heartbeat from 158, but 158 is already sended. The heartbeat between 159 and 158 is fine, and 157-159 also ok. Our version is akka2.3.10, and we want to solve this problem in 2.3.10, we will upgrade to 2.4.18 soon.
Here is the log of heartbeat, we add a log when receive heartbeat. This is 157 log, as we can see, 157 can not receive the heartbeat from 158 since 20:59:15,985 until 20:59:32,558, Heartbeat is not lost but delay 2017-05-23 20:59:07,516 | DEBUG | ult-dispatcher-3 | ClusterHeartbeatReceiver |apply$mcV$sp() 77 | com.typesafe.akka.slf4j | Received Heartbeat from akka.tcp://[email protected]:2551 2017-05-23 20:59:08,601 | DEBUG | ult-dispatcher-2 | ClusterHeartbeatReceiver |apply$mcV$sp() 77 | com.typesafe.akka.slf4j | Received Heartbeat from akka.tcp://[email protected]:2551 2017-05-23 20:59:11,824 | DEBUG | t-dispatcher-852 | ClusterHeartbeatReceiver |apply$mcV$sp() 77 | com.typesafe.akka.slf4j | Received Heartbeat from akka.tcp://[email protected]:2551 2017-05-23 20:59:13,004 | DEBUG | lt-dispatcher-29 | ClusterHeartbeatReceiver |apply$mcV$sp() 77 | com.typesafe.akka.slf4j | Received Heartbeat from akka.tcp://[email protected]:2551 2017-05-23 20:59:13,166 | DEBUG | t-dispatcher-853 | ClusterHeartbeatReceiver |apply$mcV$sp() 77 | com.typesafe.akka.slf4j | Received Heartbeat from akka.tcp://[email protected]:2551 2017-05-23 20:59:13,273 | DEBUG | t-dispatcher-853 | ClusterHeartbeatReceiver |apply$mcV$sp() 77 | com.typesafe.akka.slf4j | Received Heartbeat from akka.tcp://[email protected]:2551 2017-05-23 20:59:14,287 | DEBUG | t-dispatcher-853 | ClusterHeartbeatReceiver |apply$mcV$sp() 77 | com.typesafe.akka.slf4j | Received Heartbeat from akka.tcp://[email protected]:2551 2017-05-23 20:59:15,853 | DEBUG | t-dispatcher-853 | ClusterHeartbeatReceiver |apply$mcV$sp() 77 | com.typesafe.akka.slf4j | Received Heartbeat from akka.tcp://[email protected]:2551 2017-05-23 20:59:15,985 | DEBUG | t-dispatcher-852 | ClusterHeartbeatReceiver |apply$mcV$sp() 77 | com.typesafe.akka.slf4j | Received Heartbeat from akka.tcp://[email protected]:2551 2017-05-23 20:59:32,558 | DEBUG | ult-dispatcher-3 | ClusterHeartbeatReceiver |apply$mcV$sp() 77 | com.typesafe.akka.slf4j | Received Heartbeat from akka.tcp://[email protected]:2551 2017-05-23 20:59:32,612 | DEBUG | ult-dispatcher-3 | ClusterHeartbeatReceiver |apply$mcV$sp() 77 | com.typesafe.akka.slf4j | Received Heartbeat from akka.tcp://[email protected]:2551 2017-05-23 20:59:32,632 | DEBUG | ult-dispatcher-3 | ClusterHeartbeatReceiver |apply$mcV$sp() 77 | com.typesafe.akka.slf4j | Received Heartbeat from akka.tcp://[email protected]:2551 2017-05-23 20:59:32,831 | DEBUG | ult-dispatcher-3 | ClusterHeartbeatReceiver |apply$mcV$sp() 77 | com.typesafe.akka.slf4j | Received Heartbeat from akka.tcp://[email protected]:2551 2017-05-23 20:59:32,910 | DEBUG | ult-dispatcher-3 | ClusterHeartbeatReceiver |apply$mcV$sp() 77 | com.typesafe.akka.slf4j | Received Heartbeat from akka.tcp://[email protected]:2551 2017-05-23 20:59:32,982 | DEBUG | ult-dispatcher-3 | ClusterHeartbeatReceiver |apply$mcV$sp() 77 | com.typesafe.akka.slf4j | Received Heartbeat from akka.tcp://[email protected]:2551 2017-05-23 20:59:32,987 | DEBUG | ult-dispatcher-3 | ClusterHeartbeatReceiver |apply$mcV$sp() 77 | com.typesafe.akka.slf4j | Received Heartbeat from akka.tcp://[email protected]:2551 2017-05-23 20:59:33,059 | DEBUG | ult-dispatcher-2 | ClusterHeartbeatReceiver |apply$mcV$sp() 77 | com.typesafe.akka.slf4j | Received Heartbeat from akka.tcp://[email protected]:2551 2017-05-23 20:59:33,101 | DEBUG | ult-dispatcher-2 | ClusterHeartbeatReceiver |apply$mcV$sp() 77 | com.typesafe.akka.slf4j | Received Heartbeat from akka.tcp://[email protected]:2551 2017-05-23 20:59:33,170 | DEBUG | ult-dispatcher-2 | ClusterHeartbeatReceiver |apply$mcV$sp() 77 | com.typesafe.akka.slf4j | Received Heartbeat from akka.tcp://[email protected]:2551 2017-05-23 20:59:33,175 | DEBUG | ult-dispatcher-2 | ClusterHeartbeatReceiver |apply$mcV$sp() 77 | com.typesafe.akka.slf4j | Received Heartbeat from akka.tcp://[email protected]:2551 2017-05-23 20:59:33,190 | DEBUG | ult-dispatcher-2 | ClusterHeartbeatReceiver |apply$mcV$sp() 77 | com.typesafe.akka.slf4j | Received Heartbeat from akka.tcp://[email protected]:2551 2017-05-23 20:59:33,224 | DEBUG | ult-dispatcher-2 | ClusterHeartbeatReceiver |apply$mcV$sp() 77 | com.typesafe.akka.slf4j | Received Heartbeat from akka.tcp://[email protected]:2551 2017-05-23 20:59:33,226 | DEBUG | ult-dispatcher-2 | ClusterHeartbeatReceiver |apply$mcV$sp() 77 | com.typesafe.akka.slf4j | Received Heartbeat from akka.tcp://[email protected]:2551 2017-05-23 20:59:33,269 | DEBUG | ult-dispatcher-2 | ClusterHeartbeatReceiver |apply$mcV$sp() 77 | com.typesafe.akka.slf4j | Received Heartbeat from akka.tcp://[email protected]:2551 2017-05-23 20:59:33,302 | DEBUG | ult-dispatcher-2 | ClusterHeartbeatReceiver |apply$mcV$sp() 77 | com.typesafe.akka.slf4j | Received Heartbeat from akka.tcp://[email protected]:2551 2017-05-23 20:59:33,348 | DEBUG | ult-dispatcher-2 | ClusterHeartbeatReceiver |apply$mcV$sp() 77 | com.typesafe.akka.slf4j | Received Heartbeat from akka.tcp://[email protected]:2551 2017-05-23 20:59:33,369 | DEBUG | ult-dispatcher-2 | ClusterHeartbeatReceiver |apply$mcV$sp() 77 | com.typesafe.akka.slf4j | Received Heartbeat from akka.tcp://[email protected]:2551 2017-05-23 20:59:34,221 | DEBUG | ult-dispatcher-3 | ClusterHeartbeatReceiver |apply$mcV$sp() 77 | com.typesafe.akka.slf4j | Received Heartbeat from akka.tcp://[email protected]:2551 2017-05-23 20:59:34,603 | DEBUG | ult-dispatcher-2 | ClusterHeartbeatReceiver |apply$mcV$sp() 77 | com.typesafe.akka.slf4j | Received Heartbeat from akka.tcp://[email protected]:2551 Here is 158 log, We can confirm that the heartbeat has been sent successfully 2017-05-23 20:59:15,265 | DEBUG | -dispatcher-2409 | ClusterHeartbeatSender |apply$mcV$sp() 77 | com.typesafe.akka.slf4j | Cluster Node [akka.tcp://[email protected]:2551] - Heartbeat to [akka.tcp://[email protected]:2551] 2017-05-23 20:59:16,266 | DEBUG | -dispatcher-2398 | ClusterHeartbeatSender |apply$mcV$sp() 77 | com.typesafe.akka.slf4j | Cluster Node [akka.tcp://[email protected]:2551] - Heartbeat to [akka.tcp://[email protected]:2551] 2017-05-23 20:59:17,266 | DEBUG | -dispatcher-2409 | ClusterHeartbeatSender |apply$mcV$sp() 77 | com.typesafe.akka.slf4j | Cluster Node [akka.tcp://[email protected]:2551] - Heartbeat to [akka.tcp://[email protected]:2551] 2017-05-23 20:59:18,265 | DEBUG | -dispatcher-2398 | ClusterHeartbeatSender |apply$mcV$sp() 77 | com.typesafe.akka.slf4j | Cluster Node [akka.tcp://[email protected]:2551] - Heartbeat to [akka.tcp://[email protected]:2551] 2017-05-23 20:59:19,265 | DEBUG | ult-dispatcher-3 | ClusterHeartbeatSender |apply$mcV$sp() 77 | com.typesafe.akka.slf4j | Cluster Node [akka.tcp://[email protected]:2551] - Heartbeat to [akka.tcp://[email protected]:2551] 2017-05-23 20:59:20,265 | DEBUG | ult-dispatcher-3 | ClusterHeartbeatSender |apply$mcV$sp() 77 | com.typesafe.akka.slf4j | Cluster Node [akka.tcp://[email protected]:2551] - Heartbeat to [akka.tcp://[email protected]:2551] 2017-05-23 20:59:21,266 | DEBUG | -dispatcher-2398 | ClusterHeartbeatSender |apply$mcV$sp() 77 | com.typesafe.akka.slf4j | Cluster Node [akka.tcp://[email protected]:2551] - Heartbeat to [akka.tcp://[email protected]:2551] 2017-05-23 20:59:22,287 | DEBUG | -dispatcher-2401 | ClusterHeartbeatSender |apply$mcV$sp() 77 | com.typesafe.akka.slf4j | Cluster Node [akka.tcp://[email protected]:2551] - Heartbeat to [akka.tcp://[email protected]:2551] 2017-05-23 20:59:23,265 | DEBUG | -dispatcher-2398 | ClusterHeartbeatSender |apply$mcV$sp() 77 | com.typesafe.akka.slf4j | Cluster Node [akka.tcp://[email protected]:2551] - Heartbeat to [akka.tcp://[email protected]:2551] 2017-05-23 20:59:24,265 | DEBUG | -dispatcher-2401 | ClusterHeartbeatSender |apply$mcV$sp() 77 | com.typesafe.akka.slf4j | Cluster Node [akka.tcp://[email protected]:2551] - Heartbeat to [akka.tcp://[email protected]:2551] 2017-05-23 20:59:25,265 | DEBUG | -dispatcher-2409 | ClusterHeartbeatSender |apply$mcV$sp() 77 | com.typesafe.akka.slf4j | Cluster Node [akka.tcp://[email protected]:2551] - Heartbeat to [akka.tcp://[email protected]:2551] 2017-05-23 20:59:26,266 | DEBUG | -dispatcher-2398 | ClusterHeartbeatSender |apply$mcV$sp() 77 | com.typesafe.akka.slf4j | Cluster Node [akka.tcp://[email protected]:2551] - Heartbeat to [akka.tcp://[email protected]:2551] 2017-05-23 20:59:27,265 | DEBUG | -dispatcher-2401 | ClusterHeartbeatSender |apply$mcV$sp() 77 | com.typesafe.akka.slf4j | Cluster Node [akka.tcp://[email protected]:2551] - Heartbeat to [akka.tcp://[email protected]:2551] 2017-05-23 20:59:28,265 | DEBUG | -dispatcher-2398 | ClusterHeartbeatSender |apply$mcV$sp() 77 | com.typesafe.akka.slf4j | Cluster Node [akka.tcp://[email protected]:2551] - Heartbeat to [akka.tcp://[email protected]:2551] 2017-05-23 20:59:29,265 | DEBUG | -dispatcher-2409 | ClusterHeartbeatSender |apply$mcV$sp() 77 | com.typesafe.akka.slf4j | Cluster Node [akka.tcp://[email protected]:2551] - Heartbeat to [akka.tcp://[email protected]:2551] 2017-05-23 20:59:30,266 | DEBUG | -dispatcher-2398 | ClusterHeartbeatSender |apply$mcV$sp() 77 | com.typesafe.akka.slf4j | Cluster Node [akka.tcp://[email protected]:2551] - Heartbeat to [akka.tcp://[email protected]:2551] 2017-05-23 20:59:31,265 | DEBUG | -dispatcher-2409 | ClusterHeartbeatSender |apply$mcV$sp() 77 | com.typesafe.akka.slf4j | Cluster Node [akka.tcp://[email protected]:2551] - Heartbeat to [akka.tcp://[email protected]:2551] 2017-05-23 20:59:32,265 | DEBUG | -dispatcher-2409 | ClusterHeartbeatSender |apply$mcV$sp() 77 | com.typesafe.akka.slf4j | Cluster Node [akka.tcp://[email protected]:2551] - Heartbeat to [akka.tcp://[email protected]:2551] 2017-05-23 20:59:33,266 | DEBUG | -dispatcher-2401 | ClusterHeartbeatSender |apply$mcV$sp() 77 | com.typesafe.akka.slf4j | Cluster Node [akka.tcp://[email protected]:2551] - Heartbeat to [akka.tcp://[email protected]:2551] 2017-05-23 20:59:34,265 | DEBUG | -dispatcher-2401 | ClusterHeartbeatSender |apply$mcV$sp() 77 | com.typesafe.akka.slf4j | Cluster Node [akka.tcp://[email protected]:2551] - Heartbeat to [akka.tcp://[email protected]:2551] 2017-05-23 20:59:35,266 | DEBUG | -dispatcher-2405 | ClusterHeartbeatSender |apply$mcV$sp() 77 | com.typesafe.akka.slf4j | Cluster Node [akka.tcp://[email protected]:2551] - Heartbeat to [akka.tcp://[email protected]:2551] 2017-05-23 20:59:36,270 | DEBUG | -dispatcher-2401 | ClusterHeartbeatSender |apply$mcV$sp() 77 | com.typesafe.akka.slf4j | Cluster Node [akka.tcp://[email protected]:2551] - Heartbeat to [akka.tcp://[email protected]:2551] 2017-05-23 20:59:37,265 | DEBUG | -dispatcher-2401 | ClusterHeartbeatSender |apply$mcV$sp() 77 | com.typesafe.akka.slf4j | Cluster Node [akka.tcp://[email protected]:2551] - Heartbeat to [akka.tcp://[email protected]:2551] 2017-05-23 20:59:38,266 | DEBUG | -dispatcher-2408 | ClusterHeartbeatSender |apply$mcV$sp() 77 | com.typesafe.akka.slf4j | Cluster Node [akka.tcp://[email protected]:2551] - Heartbeat to [akka.tcp://[email protected]:2551] 2017-05-23 20:59:39,265 | DEBUG | -dispatcher-2408 | ClusterHeartbeatSender |apply$mcV$sp() 77 | com.typesafe.akka.slf4j | Cluster Node [akka.tcp://[email protected]:2551] - Heartbeat to [akka.tcp://[email protected]:2551] 2017-05-23 20:59:40,265 | DEBUG | -dispatcher-2405 | ClusterHeartbeatSender |apply$mcV$sp() 77 | com.typesafe.akka.slf4j | Cluster Node [akka.tcp://[email protected]:2551] - Heartbeat to [akka.tcp://[email protected]:2551] 2017-05-23 20:59:41,265 | DEBUG | -dispatcher-2405 | ClusterHeartbeatSender |apply$mcV$sp() 77 | com.typesafe.akka.slf4j | Cluster Node [akka.tcp://[email protected]:2551] - Heartbeat to [akka.tcp://[email protected]:2551] 2017-05-23 20:59:42,265 | DEBUG | -dispatcher-2408 | ClusterHeartbeatSender |apply$mcV$sp() 77 | com.typesafe.akka.slf4j | Cluster Node [akka.tcp://[email protected]:2551] - Heartbeat to [akka.tcp://[email protected]:2551] 2017-05-23 20:59:43,265 | DEBUG | -dispatcher-2401 | ClusterHeartbeatSender |apply$mcV$sp() 77 | com.typesafe.akka.slf4j | Cluster Node [akka.tcp://[email protected]:2551] - Heartbeat to [akka.tcp://[email protected]:2551] -- >>>>>>>>>> Read the docs: http://akka.io/docs/ >>>>>>>>>> Check the FAQ: >>>>>>>>>> http://doc.akka.io/docs/akka/current/additional/faq.html >>>>>>>>>> Search the archives: https://groups.google.com/group/akka-user --- You received this message because you are subscribed to the Google Groups "Akka User List" group. 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